CN108698239A

CN108698239A - Effector system and its control method

Info

Publication number: CN108698239A
Application number: CN201680082492.0A
Authority: CN
Inventors: 小川量平; 高桥启吾; 岸宏亮
Original assignee: Olympus Corp
Current assignee: Olympus Corp
Priority date: 2016-02-25
Filing date: 2016-02-25
Publication date: 2018-10-23
Anticipated expiration: 2036-02-25
Also published as: US11298199B2; WO2017145340A1; JP6205528B1; JPWO2017145340A1; CN108698239B; EP3421195A1; EP3421195A4; US20180360551A1

Abstract

The position that it is an object of the invention to be stretched out from the front end of insertion section with good accuracy detection executor, protection executor is so as not to being drawn back into channel in the state of keeping curved shape and being accommodated in the executor in channel will not malfunction.To achieve the goals above, effector system of the invention (1) includes:Executor (3), with elongated bending section (9), setting the front end of the bending section (9) movable part (10) and drive movable part (10) driving portion (11);With insertion section flexible (6), has and penetrate through channel (8) therein for the executor (3);The advance and retreat portion for making movable part (10) haunt from the front end of channel (8);Confirm that movable part (10) is whole whether in the stretching state confirmation portion (45) for the stretching state stretched out from the front end of channel (8);With when being confirmed as movable part (10) generally in the state of stretching, limitation advance and retreat portion (17) is not to make driving portion (11) from the limiting unit of position retrogressing at this time.

Description

Effector system and its control method

Technical field

The present invention relates to effector system and its control methods.

Background technology

Effector system (such as the referenced patent of the master-slave mode for the treatment of apparatus known in the state of the art with multi-joint Document 1).In the effector system, the position of the executor stretched out from the front end in the pliers channel being arranged in insertion section is detected It sets, so that the part in the pliers channel of the executor mode consistent with the shape in pliers channel determines joint angles.

Existing technical literature

Patent document

Patent document 1:Japanese Unexamined Patent Publication 2008-212349 bulletins

Invention content

In the effector system of patent document 1, the encoder with configuration in the butt side in pliers channel detects executor Advance and retreat amount, the position of executor stretched out from the front end in pliers channel to detection.

But in the case where insertion section is soft, make path-length in the curved of pliers channel because insertion section is bent The inner circumferential side and peripheral side of pars convoluta change, therefore, it is difficult to configuration pliers channel butt side encoder accurately Detect the position of the executor stretched out from the front end in pliers channel.

The present invention is to complete in view of the above problems, and it is an object of the present invention to provide a kind of effector system and its control method, It can accurately detect the position that executor is stretched out from the front end of insertion section, and protection executor is so as not to keeping curved It is drawn back into channel in the state of curved shape, and be accommodated in the executor in channel to malfunction.

The technical solution of the present invention is a kind of effector system comprising:Executor, with elongated soft Portion, be arranged the front end of the bending section movable part and be arranged the bending section butt for driving the movable part Driving portion;With insertion section flexible, has and penetrate through channel therein for the executor;Advance and retreat portion makes the driving Portion retreats on the length direction of the bending section, to make the movable part haunt from the front end in the channel;Stretching state Confirmation portion confirms that the movable part is whole whether in the stretching state stretched out from the front end in the channel;And limiting unit, When being confirmed as the movable part generally in the stretching state by the stretching state confirmation portion, the advance and retreat portion is limited with not The driving portion is set to be retreated from position at this time.

According to the technical program, make that there is insertion section flexible to be for example inserted into the internal of patient in the mode of bending, to Insertion section is inserted into so that its front-end configuration is in the position opposite with affected part, later by making before being equipped with the advance and retreat portion of driving portion Into to make channel of the executor through insertion section advance, making to be arranged and be stretched out from the front end in channel in the movable part of its front end.When by stretching When the confirmation portion confirmation movable part entirety that does well is in the state stretched out from the front end in channel, using the action of limiting unit to retreating Portion is limited, so that driving portion will not be retreated from position at this time.

That is, after restricting portion limits, it can prevent movable part from partly being drawn back in channel, therefore operator can not Restrictively, the movable part generally in the state stretched out from the front end in channel is freely operated.By using such technology Scheme can prevent movable part to be drawn back into channel in the state of bending, and can prevent movable part from partly being drawn back Operator is caused to limit the action of movable part itself unintentionally in channel.

Above-mentioned technical proposal can also in this manner, and the stretching state confirmation portion includes:It is identified for operator The whole state recognition portion for whether being in the stretching state of the movable part;Be identified as by the state recognition portion it is described Movable part inputs the input unit of such information in the case of the stretching state.

By using such mode, operator is recognizing movable part generally in from channel by state recognition portion When the state that front end is stretched out, input such information by input unit makes it to be limited driving portion using limiting unit It will not be retreated from position at this time.

Above-mentioned technical proposal can also include:Image pickup part shoots the front end side of the insertion section;And display Portion shows the image shot with the image pickup part, and the state recognition portion is provided on executor, the described movable part As the label when stretching state in the field range of the image pickup part.

By adopting such structure, make executor through channel before so that keep movable part whole to stretch out from the front end in channel When, occur the label being arranged on executor in the field range of image pickup part, the image obtained by image pickup part is shown in display In portion.In this way, operator can visually readily recognize the entire movable of executor according to the image shown on display unit Portion is stretched out from the front end in channel.

Above-mentioned technical proposal can also be that the state recognition portion includes:Recess portion in the channel or protrusion are set; With the holding section in the outer surface of the executor is set, when the movable part becomes the stretching state, the holding section can Ground is released with the recess portion or protrusion to engage.

By adopting such structure, make executor through channel before so that keep movable part whole to stretch out from the front end in channel When, it is arranged and engages with the recess portion or protrusion being arranged in channel in the holding section of the outer surface of executor.In this way, operator can The movable part that executor is readily recognized in power sense is whole from the stretching of the front end in channel.Also, it is limited by limiting unit After the retrogressing of driving portion, by releasing the fastening state of recess portion or protrusion and holding section, the preceding precession of driving portion can be carried out Make the free action with movable part.

Above-mentioned technical proposal can also be that the stretching state confirmation portion includes that shape reckoning portion and advance and retreat amount calculate Portion, wherein shape reckoning portion calculates that the curved shape of the insertion section, the advance and retreat amount calculating part are calculated according to the shape The curved shape that portion calculates, calculating the advance and retreat portion makes the movable part become the driving needed for the stretching state The advance and retreat amount in portion.

By using such technical solution, the Curved of insertion section is obtained as long as being calculated in advance by shape reckoning portion Shape, it will be able to the advance and retreat of the driving portion for making movable part integrally be stretched out from the front end in channel are calculated by advance and retreat amount calculating part Amount, and then can confirm stretching state based on result of calculation and implement the limitation of limiting unit.

Above-mentioned technical proposal can also be that shape reckoning portion includes the sensor being arranged in the insertion section.

By adopting such structure, the sensor being arranged in insertion section can be utilized easily to extrapolate the curved of insertion section Curved shape.

Above-mentioned technical proposal can also be that shape reckoning portion includes:By the identification information at endoceliac position and institute State the storage part that the curved shape that insertion section is inserted into the state of the position associatedly stores;Believe with for inputting the mark The identification information input unit of breath.

By adopting such structure, when the endoceliac position to be disposed of the identified information input unit input of operator When identification information, by reading the curved shape of the insertion section associatedly stored in storage part, insertion section can be easily calculated Curved shape.

Another technical solution of the present invention is a kind of control method of effector system, the executor of the effector system The front end of elongated bending section is provided with movable part and the butt of bending section is provided with the drive for driving the movable part Dynamic portion, the control method include:State confirmation step is set to curved shape and with flexibility executor to be inserted into Insertion section channel in the state of, confirm that movable part is whole whether in the stretching shape stretched out from the front end in the channel State;And conditioning step, when confirming the movable part in the state confirmation step generally in the stretching state, described in limitation Retrogressing of the driving portion from position at this time.

The effect of invention

Using the present invention, such effect can be played, that is, can accurately detect executor and be stretched from the front end of insertion section The position gone out, protection executor are accommodated in so as not to being drawn back into channel in the state of keeping curved shape in channel Executor will not malfunction.

Description of the drawings

Fig. 1 is the overall structure figure for the effector system for indicating an embodiment of the invention.

Fig. 2 is the stereogram of a part for the effector system for indicating Fig. 1.

Fig. 3 is the figure of the executor used in the effector system for indicate Fig. 1, operation inputting part and control unit.

Fig. 4 is the second operation portion, instruction transfer part and the driving and reversing mechanism of the operation inputting part of the effector system of definition graph 1 Vertical view.

Fig. 5 A are the states that the movable part of the executor for the effector system for indicating Fig. 1 is integrally stretched out from the front end of outer tube Side view.

Fig. 5 B are indicated in the effector system of Fig. 1, and mark is shown with what endoscope of the insert in outer tube obtained The figure of an example of the endoscopic images of note.

Fig. 6 is that the movable part for the effector system for indicating Fig. 1 is integrally accommodated in the receipts in the executor channel of outer tube Receive the figure of state.

Fig. 7 is the figure of an example of the limiting unit in the effector system for indicate Fig. 1.

Fig. 8 A are the states for indicating to be inserted into endoscope in the endoscope-use channel of the outer tube of the effector system of Fig. 1 Figure.

Fig. 8 B are the states for indicating to be inserted into executor in the executor channel of the outer tube of the effector system of Fig. 1 Figure.

Fig. 8 C are the figures for the state for indicating the driving portion of the executor of Fig. 8 B connecting with motor unit.

Fig. 9 is the flow chart for the control method of the effector system of definition graph 1.

Figure 10 A are the partial longitudinal section figures of the variation in the state recognition portion for the effector system for indicating Fig. 1.

Figure 10 B are the partial longitudinal section figures of the variation in the state recognition portion for the effector system for indicating Figure 10 A.

Figure 10 C are the partial longitudinal section figures for indicating following state, in this state, are known by the state recognition portion of Figure 10 B Movable part is clipped to generally in the stretching state stretched out from the front end of outer tube.

Figure 11 A are the figures of the variation of the label as state recognition portion for the effector system for indicating Fig. 1.

Figure 11 B are to indicate that executor is made to rotate around the longitudinal axis of bending section from the state of Figure 11 A and match label Set the figure in the state in center.

Figure 12 is the figure of an example of the picture for the GUI for indicating the spinning movement for making user implement Figure 11 B.

Figure 13 is to illustrate the curved shape based on outer tube come the figure of the computational methods for the advance and retreat amount for calculating driving portion, In, the advance and retreat amount of the driving portion is for making movable part integrally as the state stretched out from the front end in executor channel.

Figure 14 is the flow chart of the variation of the control method for the effector system for indicating Fig. 9.

Figure 15 is the flow chart of another variation of the control method for the effector system for indicating Fig. 9.

Specific implementation mode

In the following, refer to the attached drawing, says the effector system 1 and its control method of an embodiment of the invention It is bright.

The effector system 1 of present embodiment is as depicted in figs. 1 and 2, including:For the operation inputting part of operator's O operation 2;It can be inserted into the endoceliac outer tube (insertion section) 6 of patient P;The executor that can be inserted into the channel 8 of the outer tube 6 3 and endoscope (image pickup part) 7;Operating to control the control unit 4 of executor 3 based on operation inputting part 2;With monitor (display Portion) 5.In the example shown in Fig. 2, executor 3 is provided with 2 and is inserted into 2 channels 8 of outer tube 6, but below Only an executor 3 is illustrated.

Executor 3 is as shown in figure 3, include:The internal elongated bending section of patient P can be inserted into through the channel 8 of outer tube 6 9;Movable part 10 in the front end of the bending section 9 is set;Driving portion 11 with configuration in the butt side of insertion section 6, the driving portion 11 drive movable part 10 using power transmission members such as operation lines (not shown).

Movable part 10 includes:Configure processing unit 12 in front end, being handled it internal affected part effect; With multiple joints 13,14,15 of the front position and attitudes vibration that make the processing unit 12.Processing unit 12 be, for example, hold pliers or High frequency knife etc..

Executor 3 as shown in figure 3, further include motor unit 16 and make the motor unit 16 translate driving and reversing mechanism (advance and retreat portion) 17, wherein motor unit 16 is connect in a manner of removable with driving portion 11, is built-in with and is provided driving portion 11 The electric drives such as motor of power source (illustration omitted).

Driving and reversing mechanism 17 includes pedestal 18 and the supporting motor unit 16 in a manner of it can be translated relative to the pedestal 18 Sliding part 19.

Outer tube 6 is the pipe by being formed with material flexible, as shown in Figures 2 and 3, including 21 He of front end side tube Butt side tube 22, wherein front end side tube 21 has penetrates through executor channel (channel) 8 therein for executor 3 Penetrate through endoscope-use channel 20 therein with for endoscope 7, butt side tube from the butt of the front end side tube 21 with Executor channel 8 is set to extend to the extended mode in butt side.

Operation inputting part 2 is as shown in figure 3, include:It can be by the hand of operator O is held and is operated the first operation portion 23;It can The second operation portion 24 operated by the wrist of operator O or arm;With the operational order that will be inputted by these operation portions 23,24 It is transferred to the instruction transfer part 25 of executor 3.

First operation portion 23 is configured to shape similar with the movable part of executor 3 10, with front end 29, the front end Portion 29 is supported by the joint 26,27,28 of quantity identical as movable part 10, which is held and passed through by the hand of operator O The operation of palm or finger and move.In the first operation portion 23, be provided with to constitute first operation portion 23 each joint 26, 27, the sensor (not shown) that 28 angle is detected.But, the first operation portion 23 is not limited to have and movable part 10 Similar shape, can not also be similar.

Sensor generates electric signal corresponding with the angle in each joint 26,27,28.By adopting such structure, each One operation portion 23 can be input operation instruction by the palm of operator O or finger manipulation, and generation is referred to by the action that electric signal is constituted It enables.

The front end 29 of first operation portion 23 is provided with input unit (illustration omitted), as described later, for for operation Person O confirms and inputs 10 entirety of movable part to be stretched out from the front end in executor channel 8.

Second operation portion 24 includes:It is fixed on the arm mounting table 30 of the root of the first operation portion 23;The arm can be made The mode that mounting table 30 and the first operation portion 23 integrally move supports the translation of the arm mounting table 30 and the first operation portion 23 Mechanism 31.Arm mounting table 30 is configured to, and when operator O grips the front end 29 of the first operation portion 23, being placed exactly in can Hold the position of the arm near the wrist for the hand that hold front end 29.

Translation mechanism 31 includes sliding part 32 and rectilinear guide 33, wherein 32 fixing arm mounting table of sliding part, 30 He First operation portion 23, rectilinear guide 33, which supports the sliding part 32, makes it can be as shown in the filled arrows in Fig. 3 and Fig. 4 in level It is moved on direction.By making sliding part 32 move in the horizontal direction with the arm rested on arm mounting table 30, can protect Hold the position of mobile first operation portion 23 in the state of the gripping gesture of the first operation portion 23.By adopting such structure, the Two operation portions 24 can be input operation instruction by the wrist or arm of operator O, will pass through the masterpiece of wrist or arm input Action command is generated for the mechanical drives of 2 sliding parts 32.Refer to as action in addition to sliding part 32 generates mechanical drive It, can also be by the way of generating electrical drive power as action command except the case where enabling.

Instruction transfer part 25 include:Connect the electric signal transfer part 34 of the first operation portion 23 and driving portion 11;With connection the The machine power transfer part 35 of two operation portions 24 and driving and reversing mechanism 17.

Electric signal transfer part 34 is transferred to control unit by what the first operation portion 23 generated by the action command that electric signal is constituted 4, and the command signal that control unit 4 generates is supplied to each motor of motor unit 16.Control unit 4 is based on the first operation The action command that portion 23 generates calculates the amount of rotational movement and rotating speed of each motor of motor unit 16, controls each electricity Motivation.

As shown in figure 3, machine power transfer part 35 includes:It will be for before and after making each sliding part 32 of operation inputting part 2 The linearly operating of traveling is converted to the transfer part 36 of the linearly operating of driving and reversing mechanism 17.

As shown in figure 4, transfer part 36 includes:The translational movement of the sliding part 32 of operation inputting part 2 is converted into rotation angle The first rack and pinion mechanism 37;Spinning movement is converted to the second rack tooth of the translational movement of the sliding part 19 of driving and reversing mechanism 17 Take turns mechanism 38;The pulley 39,40 being separately fixed in the pinion gear of these rack and pinion mechanisms 37,38;Be hung on the pulley 39, the transmission belt 41 on 40.

In the present embodiment, the actuating range of the sliding part 32 of translation mechanism 31, with make executor 3 relative to outer tube The actuating range of the sliding part 32 of 6 driving and reversing mechanisms 17 moved on the length direction of bending section 9 corresponds to.That is, when making sliding part 32 between foremost position and last end position when moving, and executor 3 can be made to dispose state and Fig. 6 institutes shown in Fig. 5 A Moved between the receiving state shown, wherein the disposition state be arranged movable part 10 in the front end of executor 3 it is whole from The executor channel 8 of outer tube 6 reaches the state in front, and the receiving state, which is that movable part 10 is whole, is accommodated in outer tube State of 6 executor in channel 8.

In the present embodiment, it is provided with the limiting unit 42 of the movement of the sliding part 19 for limiting driving and reversing mechanism 17, is limited Portion 42 processed is configured to be limited, so that sliding part 19 cannot further be retreated from the half-way of its actuating range.

Limiting unit 42 is for example as shown in fig. 7, comprises the volume of the advance and retreat position of the rack of the second rack and pinion mechanism 38 of detection Code device 43, and when the encoder 43 detects specified position limit pinion gear rotation brake 44.

In the present embodiment, as fig. 5 a and fig. 5b, the front end side in disposition portion 12 is provided with label and (stretches out state Confirmation portion, state recognition portion) 45.Label 45 can pass through coating, the characteristic shape of serum cap, print character or movable part 10 (specific joint, logo labels etc.) is constituted.

In the present embodiment, the mark in disposition portion 12 is confirmed in the endoscopic images that operator O is shown on monitor 5 When remembering 45, the input unit (illustration omitted) on being set to the first operation portion 23 of operation inputting part 2 carries out confirmation input, to The rotation angle of encoder 43 and disposition portion 12 is initialized and sliding part 19 is made to advance preset length by control unit 4, should Preset length is to can be displayed in the position on monitor 5 to whole become from channel 8 of movable part 10 from label 45 to stretch out To the length of the position of the state of front end side.Later, it is configured in the position for preset length of having advanced in sliding part 19 Moment, control unit 4 make brake 44 act, limit the retrogressing (unrestricted model) of rack.

Also, as shown in fig. 6, the first operation portion of operator's O operation 23 makes all joints of composition first operation portion 23 26,27,28 become foldable shape (such as the shape stretched as the crow flies), to which control unit 4 is in the movable part 10 of executor 3 When as along the shape of the length direction of bending section 9, the limitation (pattern can be drawn back) of brake 44 is released.

In the following, being illustrated to the control method of the effector system 1 of the present embodiment constituted in this way.

In order to use the effector system 1 of present embodiment to be disposed the affected part in patient p, as shown in Figure 8 A, In the state of in the endoscope-use channel 20 that endoscope 7 is inserted into outer tube 6, endoscope 7 and outer tube 6 are inserted into patient In the body cavity of P, the image obtained by endoscope 7 is shown on monitor 5.

As shown in figure 9, control unit 4 relieves the limitation of limiting unit 42, pattern (step S1) can be drawn back by becoming.

Then, as shown in Figure 8 B, make the sliding part 19 of driving and reversing mechanism 17 retreat to be at the end and configured in the end Position limits the sliding part 19 using brake 44, and by the movable part of executor 3 10 and bending section 9 through executor channel 8 It is inserted into the internal of patient P.

In the case where sliding part 19 is not at the position for retreating and being at the end, grasped by monitor 5 and/or sound notification Author O makes it that sliding part 19 is moved to the position.At this moment, using be arranged it is on driving and reversing mechanism 17, only after sliding part 19 The test sections (illustration omitted) such as sensor of output signal in the case of the position of the end are retreated to be detected and judged.

Then, in the case where detecting that sliding part 19 has been configured in the position for retreating and being at the end by test section, such as scheme Shown in 8C, the driving portion 11 of executor 3 is waited for be connect with the motor unit 16 on the sliding part 19 for being fixed on driving and reversing mechanism 17 (step S2).Because sliding part 19 is configured in the position for retreating and being at the end at the time of driving portion 11 is connect with motor 16, So as shown in Figure 8 C, the movable part 10 of executor 3 is whole to be accommodated in completely in executor channel 8.

Then, control unit 4 notifies to adjust the advance and retreat of executor 3 using the sliding part 19 of driving and reversing mechanism 17 on monitor 5 Position, and release the limitation of brake 44.

Correspondingly, operator O is in the side that the sliding part 32 for making to be fixed with the arm mounting table 30 of the second operation portion 24 advances Force upwards.Sliding part 32 moves on the direction to be exerted a force, and translational movement is converted by the first rack and pinion mechanism 37 Rotation angle.

It has been converted into the translational movement of the rotation angle of the first rack and pinion mechanism 37, has been passed through pulley 39 and transmission belt 41 It is handed to the second rack and pinion mechanism 38, is converted into the translational movement of the sliding part 19 of driving and reversing mechanism 17.Because of motor unit 16 It is fixed on the sliding part 19 of driving and reversing mechanism 17, so the driving portion 11 being connect with motor unit 16, bending section 9 and movable part 10 Integrally the length direction along bending section 9 moves.By adopting such structure, can be by making manually positioned at movable part 10 Advance in the disposition portion 12 of front end.

When operator O persistently moves executor 3, the movable part 10 being arranged in the front end of executor 3 can be from outer tube 6 Executor channel 8 front end stretch out.Operator O confirms the image of the acquirement of endoscope 7 by monitor 5 on one side, holds on one side It is continuous that the sliding part 32 of the second operation portion 24 is made to advance.

When disposition portion 12 is stretched out from the front end in executor channel 8 as shown in Figure 5A, as shown in Figure 5 B, setting is manipulating Label 45 on device 3 can be shown on monitor 5.Operator O can recognize disposition portion 12 from executor channel as a result, (state confirmation step S3) is stretched out in 8 front end.

Whether it is completed (step S4) next, it is determined that position is adjusted.In the case where being judged as adjusting unfinished, monitoring Notify operator O that execution position is adjusted again on device 5.It is had input and has been known by the input unit of the first operation portion 23 in operator O It is clipped to the information of label 45, in the case of being judged as that position adjusting is completed, encoder 43 is initialized.At this moment, because Movable part 10 is located in outer tube 6, so movable part 10 cannot be made to act.

When operator O input has recognized the information of label 45, control unit 4 makes sliding part 19 advance preset length It spends (sliding part 19 can also be made to advance by operator O), wherein the preset length is to can be displayed in monitoring from label 45 The length of position to the whole position for becoming the state that front end side is reached from channel 8 of movable part 10 on device 5.When detecting cunning When moving part 19 is configured in the position for making it advance preset length, into unrestricted model (conditioning step S5), at this Under unrestricted model, brake 44 limits executor 3 and is moved in the reverse direction compared to the initial position of unrestricted model.At this moment, Control unit 4 starts the master & slave control (step S6) for making operation inputting part 2 link with executor 3.

About the beginning of master & slave control, it can also detect that sliding part 19 is configured in relative to first in effector system 1 It is automatically begun to when the position that beginning position has been advanced.Or it can also be that effector system 1 is standby and operated to operator O (for example, the switch of operation inputting part 2 be pressed or picture in button be pressed), when effector system 1 detects the behaviour Automatically start master & slave control when making.

In this case, in order to be operated to operation inputting part 2, operator O with the hands holds the first behaviour as shown in Figure 4 Make the front end 29 in portion 23, and arm is shelved on the arm mounting table 30 of the second operation portion 24.

When the power of operator O palms or finger makes the front end 29 of the first operation portion 23 of gripping move, movement It measures the sensor being arranged on each joint 26,27,28 to detect, and control unit 4 is passed to as electric signal.In control unit In 4, calculating keeps each joint 13,14,15 of movable part 10 consistent with the angle in each joint 26,27,28 detected with sensor The electric action command that acts of mode, and supply it to the electronic of the motor unit 16 being connect with each joint 13,14,15 Machine.Front position in the disposition portion 12 of the front end of movable part 10 is set as a result, as according to indicated by palm or finger with Electronic mode critically moves.

Using the effector system 1 of present embodiment, the executor channel 8 of outer tube 6 is incorporated in from movable part 10 Interior receiving state rises, and the sliding part 32 of the second operation portion 24 is made to advance to drive into movable part 10 out of executor channel 8 When the disposition state of stretching, brake 44 is failure to actuate, and operator O can make arm mounting table 30 in the case where movement is unrestricted Forward-reverse.

On the other hand, 10 entirety of movable part is being recognized from executor according to the endoscopic images shown on monitor 5 It is stretched out with channel 8, and after having input such information by input unit, the rotation angle in encoder 43 and disposition portion 12 is first Beginningization, when encoder 43 becomes initial position, brake 44 acts, and is no longer able to make arm mounting table 30 further to butt Side retreats.

When the movement of arm mounting table 30 is restricted, operator O due to can not make sliding part 32 further retreat, because This is able to recognize that it is about to movable part 10 from state-driven is stretched out to receiving state.Thus, it is possible to which operator O is prevented to be not intended to Knowing ground makes arm mounting table 30 excessively retreat and cause to draw back movable part 10 in executor channel 8.

That is, under unrestricted model, in addition to utilizing system when the sliding part 32 for making arm mounting table 30 is retreated to initial position Dynamic device 44 limits except its further backward movement, and movable part 10 can be made freely to act to be located without restriction It sets.Therefore it has the advantage that, that is, the joint 13,14,15 of movable part 10 can be prevented strong in the state of keeping being bent Row is drawn back in executor channel 8, prevents the front end of movable part 10 from moving in undesired directions, and can be prevented to closing Section 13,14,15, which applies to be eager to excel, forces the joint 13,14,15 of the bending of movable part 10 to become straight excessive load.

Operator O is when being meant to drive movable part 10 to receiving state, as shown in fig. 6, making the first operation portion of composition 23 each joint 26,27,28 becomes foldable shape.Such as them is made to become straight (step S7).By using such Structure, because each joint 13,14,15 for constituting movable part 10 becomes the shape of the length direction along bending section 9, control Portion 4 stops the work of brake 44 (step S8 can draw back pattern).To which operator O can make the retrogressing of sliding part 32 can Dynamic portion 10 is successfully accommodated in executor channel 8.

In the effector system 1 of present embodiment, the structure in the front end side setting flag 45 in disposition portion 12 is used, But it can also be changed to using structure shown in Figure 10 A, that is, in the position setting flag 45 for leaning on butt side than movable part 10, can 10 entirety of dynamic portion has reached label 45 in the state of front end side from channel 8 and has been located in the field range of endoscope 7.

By using structure as described above, operator O can be according to the mark in the endoscopic images shown on monitor 5 Note 45, visually recognizes that movable part 10 is whole to be stretched out from the front end in executor channel 8, without operator's O operation into Mechanism 17 is moved back, control unit 4 can start the master & slave control for making operation inputting part 2 link with executor 3.

About the beginning of master & slave control, it can also detect that sliding part 19 is configured in relative to first in effector system 1 Automatically start master & slave control when the position that beginning position has been advanced.Or can also be that effector system 1 is standby to operator O (for example, switch of operation inputting part 2 is pressed or the button of picture is pressed) is operated, when effector system 1 is examined Automatically start master & slave control when measuring the operation.

Can also be as shown in Figure 10 B, in recess portion (the state knowledge of the annular groove shape of inner surface setting in executor channel 8 Other portion) 46, and protrusion (holding section, state recognition portion) 47 is set in the outer surface of executor 3, the protrusion 47 is whole in movable part 10 Engage with recess portion 46 at the time of body is stretched out from the front end in executor channel 8.Protrusion 47 is, for example, the elastically deformables such as rubber Ring.

Due to the movement of executor 3, when as illustrated in figure 10 c, when protrusion 47 and the position consistency of recess portion 46, protrusion 47 is restored Engage with recess portion 46 at widened shape.By adopting such structure, operator O can be identified from power sense (click sense) Movable part 10 is whole from the executor front end in channel 8.

Can also protrusion 47 be set in the inner surface in executor channel 8, and in the setting of the outer surface of executor 3 and protrusion The recess portion (holding section) 46 of 47 engagings.

It can also replace including inputting operator O using the input unit in the front end of operation inputting part 2 29 is arranged It recognizes label 45 on sight glass image, but is inputted by button that the GUI on performance monitor 5 is shown.

In the present embodiment, operator O is made to recognize that movable part 10 is whole using the label 45 occurred in endoscopic images Body is stretched out from the front end in executor channel 8, but can also be on the basis of such mode, for movable part 10 around soft The rotation of the longitudinal axis in portion 9 is also initialized using label 45.Such as it can also in this manner, such as Figure 11 A Shown in Figure 11 B, as label 45, according to circumferential position, such as only label 45 existing for a circumferential part can be identified, To adjust the rotation position of movable part 10 so that as shown in Figure 11 B, label 45 appears in front in endoscopic images.

In executor 3 in the case where there is rotary joint by the position of butt side than movable part 10, GUI can also be passed through It shows button shown in Figure 12, operator O is made to implement rotation process and confirmation operation.Confirmation operation at this time can also with for The confirmation operation for carrying out the initialization of encoder 43 shares.

In addition it is also possible to instead of making operator O identifications movable part 10 is whole to be stretched out simultaneously from the front end in executor channel 8 So that it is inputted the mode of such information through input unit, but be arranged in control unit 4 shape reckoning portion (illustration omitted) and into The amount of moving back calculating part (illustration omitted), wherein shape reckoning portion calculates that the curved shape of outer tube 6, advance and retreat amount calculating part are based on pushing away Obtained curved shape calculates the stretching state stretched out from the front end in executor channel 8 for making movable part 10 integrally become Driving portion 11 advance and retreat amount and length direction rotation amount.

Computational methods based on curved shape can use Figure 13 and following formula explanation.

Δ d=π × (Rout-Rin) × θ/180

Here, Δ d is the feelings that 2 executors are configured with channel 8 in a manner of being arranged on the radial direction in curved shape The path difference in 2 executor channels 8 under condition, θ are the angles (being θ=180 ° in example shown in Figure 13) of bending part.

In this example, calculated example is shown with the difference of the Internal and external cycle in channel 8 for 2 executors.In addition to this, because manipulating Device is with channel 8 at a distance from the central shaft of insertion section 6 so that path length changes with bending direction.About its variable quantity, if It is Δ r at a distance from corresponding with the bending direction of insertion section 6, insertion section 6 central shaft and the central shaft in executor channel 8 When, which is:

Δ d '=π × Δ r × θ/180.

In the front end of insertion section 6 there are in the case of bending part, by also being carried out equally to its bending direction and angle Calculating, can calculate from the butt of bending section 6 (executor channel 8) to the path length of front end.

Present embodiment can also be in this manner, that is, the mark at the position that control unit 4 will be disposed is believed Breath is associatedly stored in curved shape in storage part (illustration omitted), and operator O is defeated by identification information before being disposed The identification information for entering portion's (illustration omitted) input position to be disposed, to based on the curved shape meter read from storage part Calculate the rotation amount of the advance and retreat amount and length direction of driving portion 11.

In addition, present embodiment can also be in this manner, that is, strain gauge, Fibre Optical Sensor are arranged in outer tube 6 The shape sensors such as device or Magnetic Sensor, the curved shape of the outer tube 6 detected based on shape sensor are calculated for making The rotation amount of the advance and retreat amount and length direction of the whole driving portion 11 stretched out from the front end in executor channel 8 of movable part 10.

In the present embodiment, when movable part 10 becomes foldable shape, control unit 4 releases the limit of brake 44 System, but such mode can also be replaced, it is changed to as shown in Figure 14, when movable part 10 becomes foldable shape, control Portion 4 processed notice can lift restrictions (step S9), in the state of having been received by notice, pass through allow to draw back by operator's O inputs It triggers (step S10), to release the limitation of brake 44.

It can also be in this manner, that is, as shown in figure 15, initial position is being compared to butt with the limitation of brake 44 Side is drawn back under the unrestricted model of movable part, and by drawing back triggering (step S11) by operator's O inputs, control unit 4 controls movable part 10 automatically drive it into the shape (step S12) that can be drawn back, and are transferred to and can draw back pattern.Then, by movable part After 10 drivings are at the shape that can be drawn back, control unit 4 can also be such that the sliding part 19 of driving and reversing mechanism 17 is moved near butt side Position.

In addition it is also possible in this manner, that is, only during operator's O long-press draws back trigger, control unit 4 Movable part 10 is controlled automatically to drive it into the shape that can be drawn back.In the case, it is drawn back if the hand of operator O leaves The action of trigger, the then movable part 10 that control unit 4 controls stops.

In addition it is also possible in the case where detecting that operator O is disconnected the connection of motor unit 16 and driving portion 11, Release the limitation of brake 44.By releasing the connection of motor unit 16 and driving portion 11, movable part 10 becomes response external force And the state being subjected to displacement, so if brake 44 is released from, it will be able to extract movable part 10 from the channel of outer tube 68.

In addition it is also possible to instead of using draw back trigger be transferred to can draw back pattern in the way of, be changed to detecting housing The position of pipe 6 is transferred in the case of adjusting request can draw back pattern.

In the present embodiment, it illustrates that the situation in outer tube 6 is arranged in the channel 8 being inserted into for executor 3, but also may be used The case where to import executor 3 applied to the channel being set in the insertion section of endoscope 7.

The explanation of reference numeral

1 effector system

3 executors

6 outer tubes (insertion section)

7 endoscopes (image pickup part)

8 channels

9 bending sections

10 movable parts

11 driving portions

17 driving and reversing mechanisms (advance and retreat portion)

42 limiting units

45 labels (stretch out state confirmation portion, state recognition portion)

46 recess portions (state recognition portion, holding section)

47 protrusions (state recognition portion, holding section)

S3 state confirmation steps

S5 conditioning steps

Claims

1. a kind of effector system, which is characterized in that including:

Executor with elongated bending section, is arranged in the movable part of the front end of the bending section and setting in the bending section Butt for driving the driving portion of the movable part;

With insertion section flexible, has and penetrate through channel therein for the executor;

Advance and retreat portion makes the driving portion retreat on the length direction of the bending section, to make the movable part from described It haunts the front end in channel;

State confirmation portion is stretched out, confirms that the movable part is whole whether in the stretching shape stretched out from the front end in the channel State;With

Limiting unit, when being confirmed as the movable part generally in the stretching state by the stretching state confirmation portion, limitation The advance and retreat portion is not to make the driving portion be retreated from position at this time.

2. effector system as described in claim 1, it is characterised in that:

The stretching state confirmation portion includes:Operator is set to identify the whole shape for whether being in the stretching state of the movable part State identification part;It is inputted in the case where being identified as the movable part generally in the stretching state by the state recognition portion The input unit of such information.

3. effector system as claimed in claim 2, which is characterized in that including:

Image pickup part shoots the front end side of the insertion section;With

Display unit shows the image shot by the image pickup part,

The state recognition portion is provided on executor, the described movable part as the camera shooting is located at when the stretching state Label in the field range in portion.

4. effector system as claimed in claim 2, it is characterised in that:

The state recognition portion includes:Recess portion in the channel or protrusion are set;With the appearance in the executor is set The holding section in face, when the movable part becomes the stretching state holding section liftedly with the recess portion or protrusion card It closes.

5. effector system as described in claim 1, it is characterised in that:

The stretching state confirmation portion includes shape reckoning portion and advance and retreat amount calculating part, wherein shape reckoning portion calculates institute The curved shape of insertion section is stated, the curved shape that the advance and retreat amount calculating part is calculated according to the shape reckoning portion calculates institute State the advance and retreat amount for the driving portion that advance and retreat portion makes the movable part become needed for the stretching state.

6. effector system as claimed in claim 5, it is characterised in that:

Shape reckoning portion includes the sensor being arranged in the insertion section.

7. effector system as claimed in claim 5, it is characterised in that:

Shape reckoning portion includes:The identification information at endoceliac position and the insertion section are inserted into the shape at the position The storage part that curved shape under state associatedly stores;With the identification information input unit for inputting the identification information.

8. a kind of control method of effector system, it is characterised in that:

The executor of the effector system is provided with movable part in the front end of elongated bending section and is set in the butt of bending section It is equipped with the driving portion for driving the movable part,

The control method includes:

State confirmation step, executor is inserted into be set to curved shape and with insertion section flexible channel in Under state, confirm that the movable part is whole whether in the stretching state stretched out from the front end in the channel;With

Conditioning step, when confirming the movable part in the state confirmation step generally in the stretching state, described in limitation Retrogressing of the driving portion from position at this time.